"The Internet is ruled ... and the seals." Since the first part on Habré is not welcome, then let it be the second. Kittydar is a cat recognition system in javascript photos. In fact, Kittydar stands for a histogram of oriented gradients (it, for example, recognizes people in vehicle detection systems), which determines the presence of certain shapes and their combination. Hence the restriction of Kittydar - only a cat looking straight into the camera (face) with minor deviations is determined, the figures of the “Internet rulers” are no longer calculated in various poses.